Brightness controls doesn't work on a MacBook Pro 5.5

Posted by Jeff Labonte on Ask Ubuntu See other posts from Ask Ubuntu or by Jeff Labonte
Published on 2012-01-13T15:05:18Z Indexed on 2012/03/31 23:42 UTC
Read the original article Hit count: 246

Filed under:

brightness

I recently installed Ubuntu on my MacBook pro 5.5 (mid 2009). I have a problem with the brightness control. The thing is, when I try to reduce the brightness of my display which would help my battery life dramaticlly is doesnt work.

I tried to use the system preference but no succes. I tried to look of it changes something if disconnect the computer from the charge I the screen will dimm but once against I failed.

I tried many things such as pommed or Many other little things that I have had read on forums.

Related posts about brightness

Brightness keys adjust brightness too many times

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Every time I hit a brightness key on my laptop's keyboard, it adjusts the brightness by three steps instead of one. How can I fix it so that it only adjusts one step at a time? I am using an Acer Aspire D250 with the newest firmware. It was working better when I was using Ubuntu 10.10 with older… >>> More
The dreaded Brightness issue (Fn keys + Max brightness)

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I'm trying to get some control over the brightness of my Samsung QX411 (Integrated Intel and discrete Nvidia, though Ubuntu doesn't see the latter yet, I'll play around with Bumblebee later) Using the FN+up/down lowers the screen brightness from max to one peg down or back up. If I try to bring the… >>> More
Brightness controls not adjusting the brightness in ubuntu 10.10 64 bit on hp dm3t notebook

as seen on Super User - Search for 'Super User'
I picked up an hp dm3t laptop with intel HD graphics and installed ubuntu 10.10 64 bit on it. It works great -- the only problem is that the brightness controls don't work. The brightness is always at full. When I try to adjust it down, the indicator graphic indicates that it's going down but the… >>> More
Why does Ubuntu reset brightness settings at the loading screen?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Since I first installed Ubuntu 11.10, I noticed that volume and screen brightness get reset every time Ubuntu starts. Why is this so? And what ways are there to keep brightness and volume levels after rebooting? I have found some scripts that change the screen-brightness at login. But this is not… >>> More
Ubuntu 11.10 - can't adjust brightness on my laptop

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Using every method possible I'm unable to change my laptop brightness.. It's stuck on super max brightness.. Using the slider in the "screens" window int he control panel doesnt do anything, and using the fn keys doesn't do anything... Some info about my system: laptop is a MSI VR420 Running ubuntu… >>> More

Developer IT